I just installed my piggyback. I am asking only asking because my RPM's did not shoot up. Is that normal. It is idleing as we speak.

 

just let it idle for awhile and you should be fine.

 

make sure you drain the battery for a full 15 minutes. if you do that and they still don't go out, then ur fine

 

It's possible that you just missed the RPM rise. Mine only does it for like a second, if goes up to like 4 grand real quick right when I start it up, but then it returns to a lower idle and continues the learning period. Even if it doesn't do the high idle thing, I wouldn't worry as long as the car learns and runs fine.